contrib/objcwrapper/src/objcwrapper.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #     http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 # Generator of Nit modules to wrap Objective-C services
  16 module objcwrapper
  17
  18 import nitcc_runtime
  19 import opts
  20
  21 import objc_visitor
  22 import objc_model
  23 import objc_generator
  24 import objc_lexer
  25 import objc_parser
  26
  27 var opt_help = new OptionBool("Show this help message", "-h", "--help")
  28
  29 var opts = new OptionContext
  30 opts.add_option(opt_help, opt_output, opt_init_as_methods)
  31 opts.parse(args)
  32
  33 if opts.errors.not_empty or opts.rest.is_empty or opt_help.value then
  34         print """
  35 Usage: objcwrapper [options] input_file [other_input_file [...]]
  36 Options:"""
  37         opts.usage
  38
  39         if opt_help.value then exit 0
  40         exit 1
  41 end
  42
  43 var v = new ObjcVisitor
  44 var g = new CodeGenerator
  45
  46 for arg in opts.rest do
  47         # Read input
  48         var content = arg.to_path.read_all
  49
  50         # Parse
  51         var lexer = new Lexer_objc(content)
  52         var parser = new Parser_objc
  53         var tokens = lexer.lex
  54         parser.tokens.add_all(tokens)
  55         var root = parser.parse
  56
  57         # Check for errors
  58         if root isa NError then
  59                 print_error "Syntax Error: {root.message}: {root.position or else ""}"
  60                 continue
  61         end
  62
  63         # Run analysis
  64         v.enter_visit root
  65 end
  66
  67 g.generate v.model.classes